@article{Kozen_1985,
    doi = {10.1016/0022-0000(85)90012-1},
    url = {https://doi.org/10.1016%2F0022-0000%2885%2990012-1},
    year = {1985},
    month = {apr},
    publisher = {Elsevier {BV}},
    volume = {30},
    number = {2},
    pages = {162--178},
    author = {Dexter Kozen},
    title = {A probabilistic {PDL}},
    journal = {Journal of Computer and System Sciences}
}

@article{Kozen_1985, doi = {10.1016/0022-0000(85)90012-1}, url = {https://doi.org/10.1016%2F0022-0000%2885%2990012-1}, year = {1985}, month = {apr}, publisher = {Elsevier {BV}}, volume = {30}, number = {2}, pages = {162--178}, author = {Dexter Kozen}, title = {A probabilistic {PDL}}, journal = {Journal of Computer and System Sciences} }